Secure Connection Failed
An error occurred during a connection to https://hostname:5634. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert.
Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL
This problems seems to be showing up in older version of FireFox browser with self signed certificates.
The recommended solution seems to be to remove the xprtld issued certificate from FireFox certificate repository under Tools–> options–> Advanced–> View Certificates.
Latest versions of FireFox seem to have fixed the problem.